Yosemite officials announced this week that a nonprofit trust bought the land for $2.3 million and donated it to the park as a wildlife habitat

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In this Oct. 2, 2013, file photo taken by Tammy Webber, a scenic view on her way to Glacier Point trail in the Yosemite National Park, California, is seen.

A U.S. lawmaker says Yosemite National Park violated federal law by adding 400 acres to its boundary without clearing it through Congress.

Rep. Rob Bishop, a Republican from Utah who chairs the House Natural Resources Committee, told The Associated Press in a statement Friday that the National Park Service "acted outside of its authority, and we will require them to account for their actions."